Energetics of charged metal clusters containing vacancies.

We study theoretically large metal clusters containing vacancies. We propose an approach, which combines the Kohn-Sham results for monovacancy in a bulk of metal and analytical expansions in small parameters c (relative concentration of vacancies) and R, R being cluster radii. We obtain expressions of the ionization potential and electron affinity in the form of corrections to electron work function, which require only the characteristics of 3D defect-free metal.

Effects of charging and tunnelling in a structure based on magic and non-magic metal clusters.

The effects of charging and single-electron tunnelling in a metal cluster structure are investigated theoretically. In the framework of the particle-in-a-box model for spherical and disc-shaped gold clusters, the electron spectrum and the temperature dependence of the electron chemical potential are calculated. The difference between the electron chemical potentials of massive electrodes and islands leads to the noticeable charging of the electrode.

[Medical ozone in combination with low-frequency ultrasound therapy in the treatment of patients with chronic purulent otitis media].

The authors propose a method of endoural ultrasound therapy in parallel with local introduction of ozonized physiological solution for patients with otitis media purulenta chronica. Locally used was the solution containing ozone in concentration 10 mg/l. Low-frequency ultrasound therapy was conducted using Tonsillor-2 unit with special intraauricular wave guides.

[Choice of rehabilitation in patients with mixed hypoacusis].

The article presents classification of mixed forms of hypoacusis based on certain combination of audiological criteria reflecting the impact of a hypoacusis neurosensory component. A differential approach to rehabilitation of patients with mixed hypoacusis caused by chronic pathological processes in the middle ear is proposed. The approach allows for severity of neurosensory hearing disorders.

[Peculiarities of hypoacusis in citizens of the East Siberia].

Hearing disorders are characterized for citizens of the East Siberia belonging to Europeoid or Mongoloid race. Interpopulation features of hypoacusis of various genesis and effects of natural-geographic and ethnic factors on hypoacusis manifestations in native Mongoloid and migrant Europeoid Siberian population are shown.